I want to localize my application; I am using Swift 2. I followed this tutorial but I experience 2 issues.
I'm a bit late, but if you're still searching for a solution for task #1:
You could use the solutions presented in that tutorial; there's a Internationalization of Images section.
"After selecting [your image] in Project navigator, click Localize button under File Inspector. This should provide you with the option to Localize the file in English and German."
That being said, I'm unsure whether this would work on Swift 2 (if you're still on there); but that should be possible with an up-to-date Xcode/IDE.
In the Localizable.strings
for English and German you have missed the semi-colon at the end of statement.
It should be like :
"buttonTitle" = "MyButton";
and
"buttonTitle" = "MeinButton";
You can refer Apple docs for this.